Face recognition software for less than £300

For £280, you could kit out one of your doors with a locking system worthy of a James Bond villain.

The Chinavision Facial Recognition door lock can store and register up to 500 faces thanks to an internal dual sensor and two cameras. This, claims the manufacturer, "allows it to establish an incredible facial recognition algorithm in a fraction of a second". Importantly, the system also works at night. A 3.5 inch screen and touch keypad are also included.

The system can also be used to record attendance in an office. There's a USB and Ethernet port so that managers can download or keep track of who arrives and leaves the office when. So if you want your employees to feel that Big Brother is always watching them, invest in this system and a whole host of surveillance cameras and you’re sure to instil the desired level of fear.